20 Questions
What is voltage a measure of?
The force or pressure applied to electrons
In which direction is the current flow generally understood to occur?
From negative to positive
What is the unit for the force that propels the electrons down the wire?
Volts
How does doubling the voltage affect the current in a circuit?
It doubles the current
How is potential denoted with reference to a point?
+100 V with reference to 0 V
What is the purpose of the triboelectric series?
To rank materials based on their tendency to gain or lose electrons
At 10% to 20% relative humidity, what is the electrostatic voltage when walking over a vinyl floor?
12 000
According to the information provided, what can be predicted about the voltage levels when two materials close together in the triboelectric series are rubbed together?
They will produce less voltage
Who first discovered and wrote about the relationship between attracting or repelling charged bodies?
Charles A. Coulomb
What is the main impact of materials higher on the triboelectric series?
They become positively charged
What is voltage a measure of between two bodies with different potentials?
The difference in potential between the two bodies
When can the voltage between two bodies have a negative sign?
When the bodies have the same potential
What is the voltage difference between two bodies called?
Potential difference (PD)
How does doubling the resistance in a circuit affect the current?
Halves the current
What is resistance directly proportional to?
The length of any conductor
What will an uncharged pith ball be attracted to?
A positively charged rod
What happens when a rod with an excess of electrons is negatively charged?
The pith ball becomes positively charged and is attracted to the rod
What happens when both the rod and the pith ball exhibit like electrostatic charges?
They repel each other
What type of material is rubber in terms of electricity?
Insulator
What happens when one part of a balloon is rubbed with wool?
The balloon becomes positively charged
Test your knowledge of electrostatic voltages and static generation in electrical systems. This quiz covers the different voltages generated in various scenarios, such as walking across carpet, handling vinyl envelopes, and working with plastic bags.
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